<template>
   <div class="col-md-4">
    <form action="form-horizontal">
      <div class="form-group">
        <label>用户名</label>
        <input type="text" class="form-control" placeholder="用户名" v-model="name">
      </div>
      <div class="form-group">
        <label>评论内容</label>
        <textarea type="text" class="form-control" placeholder="评论内容" v-model="content"></textarea>
      </div>
      <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
          <button type="button" class="btn btn-default pull-right" @click="add">提交</button>
        </div>
      </div>
    </form>
  </div>
</template>
<script>
export default {
    props: {
    addComment: {
      type: Function,
      required: true // 必要性
    }
  },
  data(){
    return{
      name:'',
      content:''
    }
  },
    methods:{
      add(){
        //1.检查输入的合法性
        const name=this.name.trim()
        const content=this.content.trim()
        if(!name||!content){
          alert("姓名内容不能为空！")
          return
        }
        //2.根据输入的数据，封装成一个comment对象
        const comment={
          name,
          content
        }
        //3.添加到comments中
        this.addComment(comment)
        this.name="";
        this.content="";

      }
    }
}
</script>
<style>

</style>
